After Paldean Fates releases, these prices are expected to stabilize slightly, but the demand for this shiny variant of Charizard is expected to continue driving the set.
I watched William Jensen stream a Mardu list with it, which I later learned was designed by Nick Prince of recent Song of Freyalise Selesnya fame
As demand for certain cards increases or decreases over time, so does the price of these products
Once its initial attack is done, however, Chittering Host doesnt provide much value other than being a 5/6 body with some evasion
I went undefeated against G/B/W Reanimator in the MOCS, Invitational, PTQ, and the Swiss rounds of the WMCQ and have not lost the matchup on Magic Online in recent memory
However, the attack also has a coin flip part that, when successful, causes the opponent's active Pokmon to be inflicted with the Paralyze status condition , which stops them from attacking or retreating